Lantern.



Patented nec. 26, |899. n. JACKMAN.

L A N T E R N (Applicatin led May 22, 1899.)

(No Model.)

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A 77'OHNEYS,

UNTTED STATES PATENT OFFICE.

ROYAL JACKMAN, OF ANTHONY, TERRITORY OF N ENV MEXICO.

LANTERN.l

SPECIFICATION forming part of Letters Patent No. 639,988, dated December 26, 1899.

Application filed May 22, 1899. Serial No. 717,754. (No model.)

tain new and useful Improvements in Lan-J terns, of which the followingis a specification.

My invention pertains particularly to lantern-tops and it is my object to so construct the same that 1light -rays may be emitted through them at will, so as to illuminate objects located above or overhead. To this end I provide lantern-tops with an opening of due size which is normally closed by a rotary slide having a portion that is impervious to light and on the opposite side an opening for passage of light. p

In the accompanying drawings, Figure l is a side view of the top portion of a lantern provided with my improvement, the slide being adj usted to allow emission of light through spective view of the lantern-top proper.

The lantern-top proper A is constructed (see Fig. 5) in the usual manner, save that its liarin g base l is cut out, and thus provided with a segmental opening 2, which extends nearly half-way around the same. My rotary slide B (see Fig. 3) for covering such opening 2 is formed of a circular vertical collar or band 3 and a flaring base portion 4, having an opening 5, corresponding in form and dimensions to the opening 2 in the top A. When the said slide B is applied to the top A, as shown in Figs. l and 2, the ring or band 3 encircles the cylindrical body 6 of the top A and the slide-liange 4 lies iiat upon the flaring base l of said top.

It is apparent that when the slide B is adjusted, as shown in Figs. l and 2, with its opening 5 coincident with the opening 2 in the lantern-top A, light may be emitted in an upward direction, so as to illuminate the space above and lateral to the lantern, and, on the other hand, when said slide B is adjusted, as shown in Fig. 4, with its imperforate portion lney-holder IO, Fig. 2.

over the opening 2 in the lantern-top A no light can escape from said opening.

It will be observed that the slide B is' rotated half-way around to thus cover or uncover the opening 2 in the top. This movev lateral pins 9, which in some railroad-lan terns form an attachment of a springchim- The said pins 9 project through slots in the sides of the lanterntop proper and work in circumferential slots 1l in the slide-band 3, as shown.

My invention has a wide range of application, but is particularly useful for railroad men, for example, when sealing cars at night, since the operator requires to hold the seal in one hand and the sealing-iron in the other, while the lantern must be hung on and swing from his arm, and hence light from the same cannot usually be conveniently directed upon the car-door fastenings, which are placed nearly as high as he is able to reach. By adjusting the slide B with its opening 5 coincident with the opening 2 in lantern-top A, as before described, light is emitted upwardly,

as illustrated in Fig. l, and serves to illumr.

nate the door-fastenings, so that the sealing operation may be easily and quickly effected.

The form of the opening 2 in the lantern-top and the absence of any obstruction between the burner and such opening enable the lightrays to be emitted through the opening in fan-like form, and thus directly upon the object or objects to be illuminated.

l. The improved lantern for railroad use, having the circular top whose flaring base is provided with the opening 2, extending around said top concentrically, and adapted for radiation of light-rays from the burner in a fan-like form, the space between said base TOO and burner being free or unobstructed, as shown and described.

2. As an improved article of manufacture, the top for railroad-lanterns provided with a Haring base having the segmental opening arranged as shown and described,'for the purpose specified.

3. The combination, with a lantern-top,v

having an opening as specified, of an attachment in the form of a rotary slide, which is provided with an opening and an imperforate portion, and is adapted to be adjusted to cover and uncover the opening in the top, substantially as shown and described.

4. The combination, with a lantern-top proper, having an opening in its Haring base as specified, of a rotary slide, comprising a portion adapted to fit upon said base, and having an opening corresponding to that in said top, and means for holding the slide down upon the top, substantially as shown and described.

5. The combination, with a lantern-top,

having an opening in its Haring base for emission of light, of aslide, comprisinga circular flaring portion adapted to lie upon such base and having acorresponding opening, the said slide being adapted to rotate around the lantern-top; a lateral projection on the slide for use in rotating it as speciiied; and projections on the top which engage the slide, for holding it in place, as shown and described.

6. The combination, with the lantern-top, having an opening in its daring-base portion, and pins projectinglaterally, of arotary slide having a Haring base provided with a like opening and an opposite imperforate portion, and a ring or circular vertical band having circumferential slots adapted to receive said pins, substantially as and for the purpose specified.

ROYAL J ACKMAN.

Witnesses:

C. E. MILLER, RICH. NUTZCHMANN. 

